"得赌神毕生绝(jué )技的刀(dāo )仔（刘德华）在龙五（向(xiàng )华(huá )强）的陪同(tóng )下重出江(jiāng )湖，代表师父以赌技(jì )致(zhì )力慈(cí )善事业，人称赌侠。遇到(dào )欲(yù )拜(bài )赌神为师号称赌圣的阿星(xīng )（周星驰）后，两人互展计谋绝技，打成平手。